Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-08 22:24:32 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/BuR/brppt2/board.c
Harald Seiler 35b65dd8ef reset: Remove addr parameter from reset_cpu() 
Historically, the reset_cpu() function had an `addr` parameter which was
meant to pass in an address of the reset vector location, where the CPU
should reset to.  This feature is no longer used anywhere in U-Boot as
all reset_cpu() implementations now ignore the passed value.  Generic
code has been added which always calls reset_cpu() with `0` which means
this feature can no longer be used easily anyway.

Over time, many implementations seem to have "misunderstood" the
existence of this parameter as a way to customize/parameterize the reset
(e.g.  COLD vs WARM resets).  As this is not properly supported, the
code will almost always not do what it is intended to (because all
call-sites just call reset_cpu() with 0).

To avoid confusion and to clean up the codebase from unused left-overs
of the past, remove the `addr` parameter entirely.  Code which intends
to support different kinds of resets should be rewritten as a sysreset
driver instead.

This transformation was done with the following coccinelle patch:

    @@
    expression argvalue;
    @@
    - reset_cpu(argvalue)
    + reset_cpu()

    @@
    identifier argname;
    type argtype;
    @@
    - reset_cpu(argtype argname)
    + reset_cpu(void)
    { ... }

Signed-off-by: Harald Seiler <hws@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-02 14:03:02 -05:00

546 lines
17 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* Board functions for BuR BRPPT2 board
*
* Copyright (C) 2019
* B&R Industrial Automation GmbH - http://www.br-automation.com/
*
*/
#include <common.h>
#include <cpu_func.h>
#include <hang.h>
#include <init.h>
#include <spl.h>
#include <dm.h>
#include <miiphy.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#ifdef CONFIG_SPL_BUILD
# include <asm/arch/mx6-ddr.h>
#endif
#include <asm/arch/clock.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/gpio.h>
#define USBHUB_RSTN IMX_GPIO_NR(1, 16)
#define BKLT_EN IMX_GPIO_NR(1, 15)
#define CAPT_INT IMX_GPIO_NR(4, 9)
#define CAPT_RESETN IMX_GPIO_NR(4, 11)
#define SW_INTN IMX_GPIO_NR(3, 26)
#define VCCDISP_EN IMX_GPIO_NR(5, 18)
#define EMMC_RSTN IMX_GPIO_NR(6, 8)
#define PMIC_IRQN IMX_GPIO_NR(5, 22)
#define TASTER IMX_GPIO_NR(5, 23)
#define ETH0_LINK IMX_GPIO_NR(1, 27)
#define ETH1_LINK IMX_GPIO_NR(1, 28)
#define UART_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \
PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
#define I2C_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \
PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
#define ECSPI_PAD_CTRL (PAD_CTL_PUS_100K_DOWN | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_48ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_60ohm | \
PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
#define ENET_PAD_CTRL1 (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_34ohm | \
PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
#define ENET_PAD_CTRL_PU (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_80ohm | \
PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
#define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_60ohm | \
PAD_CTL_SRE_FAST)
#define GPIO_PAD_CTRL_PU (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \
PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
#define GPIO_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \
PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
#define LCDCMOS_PAD_CTRL (PAD_CTL_PUS_100K_DOWN | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_120ohm |\
PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
#define MUXDESC(pad, ctrl) IOMUX_PADS(pad | MUX_PAD_CTRL(ctrl))
#if !defined(CONFIG_SPL_BUILD)
static iomux_v3_cfg_t const eth_pads[] = {
/*
* Gigabit Ethernet
*/
/* CLKs */
MUXDESC(PAD_GPIO_16__ENET_REF_CLK, ENET_PAD_CTRL_CLK),
MUXDESC(PAD_ENET_REF_CLK__ENET_TX_CLK, ENET_PAD_CTRL_CLK),
/* MDIO */
MUXDESC(PAD_ENET_MDIO__ENET_MDIO, ENET_PAD_CTRL_PU),
MUXDESC(PAD_ENET_MDC__ENET_MDC, ENET_PAD_CTRL_PU),
/* RGMII */
MUXDESC(PAD_RGMII_TXC__RGMII_TXC, ENET_PAD_CTRL1),
MUXDESC(PAD_RGMII_TD0__RGMII_TD0, ENET_PAD_CTRL),
MUXDESC(PAD_RGMII_TD1__RGMII_TD1, ENET_PAD_CTRL),
MUXDESC(PAD_RGMII_TD2__RGMII_TD2, ENET_PAD_CTRL),
MUXDESC(PAD_RGMII_TD3__RGMII_TD3, ENET_PAD_CTRL),
MUXDESC(PAD_RGMII_TX_CTL__RGMII_TX_CTL, ENET_PAD_CTRL),
MUXDESC(PAD_RGMII_RXC__RGMII_RXC, ENET_PAD_CTRL_PU),
MUXDESC(PAD_RGMII_RD0__RGMII_RD0, ENET_PAD_CTRL_PU),
MUXDESC(PAD_RGMII_RD1__RGMII_RD1, ENET_PAD_CTRL_PU),
MUXDESC(PAD_RGMII_RD2__RGMII_RD2, ENET_PAD_CTRL_PU),
MUXDESC(PAD_RGMII_RD3__RGMII_RD3, ENET_PAD_CTRL_PU),
MUXDESC(PAD_RGMII_RX_CTL__RGMII_RX_CTL, ENET_PAD_CTRL_PU),
/* ETH0_LINK */
MUXDESC(PAD_ENET_RXD0__GPIO1_IO27, GPIO_PAD_CTRL_PD),
/* ETH1_LINK */
MUXDESC(PAD_ENET_TX_EN__GPIO1_IO28, GPIO_PAD_CTRL_PD),
};
static iomux_v3_cfg_t const board_pads[] = {
/*
* I2C #3, #4
*/
MUXDESC(PAD_GPIO_3__I2C3_SCL, I2C_PAD_CTRL),
MUXDESC(PAD_GPIO_6__I2C3_SDA, I2C_PAD_CTRL),
/*
* UART#4 PADS
* UART_Tasten
*/
MUXDESC(PAD_CSI0_DAT12__UART4_TX_DATA, UART_PAD_CTRL),
MUXDESC(PAD_CSI0_DAT13__UART4_RX_DATA, UART_PAD_CTRL),
MUXDESC(PAD_CSI0_DAT17__UART4_CTS_B, UART_PAD_CTRL),
MUXDESC(PAD_CSI0_DAT16__UART4_RTS_B, UART_PAD_CTRL),
/*
* ESCPI#1
* M25P32 NOR-Flash
*/
MUXDESC(PAD_EIM_D16__ECSPI1_SCLK, ECSPI_PAD_CTRL),
MUXDESC(PAD_EIM_D17__ECSPI1_MISO, ECSPI_PAD_CTRL),
MUXDESC(PAD_EIM_D18__ECSPI1_MOSI, ECSPI_PAD_CTRL),
MUXDESC(PAD_EIM_D19__GPIO3_IO19, ECSPI_PAD_CTRL),
/*
* ESCPI#2
* resTouch SPI ADC
*/
MUXDESC(PAD_CSI0_DAT8__ECSPI2_SCLK, ECSPI_PAD_CTRL),
MUXDESC(PAD_EIM_OE__ECSPI2_MISO, ECSPI_PAD_CTRL),
MUXDESC(PAD_CSI0_DAT9__ECSPI2_MOSI, ECSPI_PAD_CTRL),
MUXDESC(PAD_EIM_D24__GPIO3_IO24, ECSPI_PAD_CTRL),
/*
* USDHC#4
*/
MUXDESC(PAD_SD4_CLK__SD4_CLK, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_CMD__SD4_CMD, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT0__SD4_DATA0, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT1__SD4_DATA1, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT2__SD4_DATA2, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT3__SD4_DATA3, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT4__SD4_DATA4, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT5__SD4_DATA5, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT6__SD4_DATA6, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT7__SD4_DATA7, USDHC_PAD_CTRL),
/*
* USB OTG power & ID
*/
/* USB_OTG_5V_EN */
MUXDESC(PAD_EIM_D22__GPIO3_IO22, GPIO_PAD_CTRL_PD),
MUXDESC(PAD_EIM_D31__GPIO3_IO31, GPIO_PAD_CTRL_PD),
/* USB_OTG_JUMPER */
MUXDESC(PAD_ENET_RX_ER__USB_OTG_ID, GPIO_PAD_CTRL_PD),
/*
* PWM-Pins
*/
/* BKLT_CTL */
MUXDESC(PAD_SD1_CMD__PWM4_OUT, GPIO_PAD_CTRL_PD),
/* SPEAKER */
MUXDESC(PAD_SD1_DAT1__PWM3_OUT, GPIO_PAD_CTRL_PD),
/*
* GPIOs
*/
/* USB_HUB_nRESET */
MUXDESC(PAD_SD1_DAT0__GPIO1_IO16, GPIO_PAD_CTRL_PD),
/* BKLT_EN */
MUXDESC(PAD_SD2_DAT0__GPIO1_IO15, GPIO_PAD_CTRL_PD),
/* capTouch_INT */
MUXDESC(PAD_KEY_ROW1__GPIO4_IO09, GPIO_PAD_CTRL_PD),
/* capTouch_nRESET */
MUXDESC(PAD_KEY_ROW2__GPIO4_IO11, GPIO_PAD_CTRL_PD),
/* SW_nINT */
MUXDESC(PAD_EIM_D26__GPIO3_IO26, GPIO_PAD_CTRL_PU),
/* VCC_DISP_EN */
MUXDESC(PAD_CSI0_PIXCLK__GPIO5_IO18, GPIO_PAD_CTRL_PD),
/* eMMC_nRESET */
MUXDESC(PAD_NANDF_ALE__GPIO6_IO08, GPIO_PAD_CTRL_PD),
/* HWID*/
MUXDESC(PAD_NANDF_D0__GPIO2_IO00, GPIO_PAD_CTRL_PU),
MUXDESC(PAD_NANDF_D1__GPIO2_IO01, GPIO_PAD_CTRL_PU),
MUXDESC(PAD_NANDF_D2__GPIO2_IO02, GPIO_PAD_CTRL_PU),
MUXDESC(PAD_NANDF_D3__GPIO2_IO03, GPIO_PAD_CTRL_PU),
/* PMIC_nIRQ */
MUXDESC(PAD_CSI0_DAT4__GPIO5_IO22, GPIO_PAD_CTRL_PU),
/* nTASTER */
MUXDESC(PAD_CSI0_DAT5__GPIO5_IO23, GPIO_PAD_CTRL_PU),
/* RGB LCD Display */
MUXDESC(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DI0_PIN2__IPU1_DI0_PIN02, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DI0_PIN3__IPU1_DI0_PIN03, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DI0_PIN4__IPU1_DI0_PIN04, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DI0_PIN15__IPU1_DI0_PIN15, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT0__IPU1_DISP0_DATA00, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT1__IPU1_DISP0_DATA01, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT2__IPU1_DISP0_DATA02, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT3__IPU1_DISP0_DATA03, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT4__IPU1_DISP0_DATA04, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT5__IPU1_DISP0_DATA05, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT6__IPU1_DISP0_DATA06, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT7__IPU1_DISP0_DATA07, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT8__IPU1_DISP0_DATA08, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT9__IPU1_DISP0_DATA09, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT10__IPU1_DISP0_DATA10, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT11__IPU1_DISP0_DATA11, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT12__IPU1_DISP0_DATA12, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT13__IPU1_DISP0_DATA13, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT14__IPU1_DISP0_DATA14, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT15__IPU1_DISP0_DATA15, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT16__IPU1_DISP0_DATA16, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT17__IPU1_DISP0_DATA17, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT18__IPU1_DISP0_DATA18, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT19__IPU1_DISP0_DATA19, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT20__IPU1_DISP0_DATA20, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT21__IPU1_DISP0_DATA21, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT22__IPU1_DISP0_DATA22, LCDCMOS_PAD_CTRL),
MUXDESC(PAD_DISP0_DAT23__IPU1_DISP0_DATA23, LCDCMOS_PAD_CTRL),
};
int board_ehci_hcd_init(int port)
{
gpio_direction_output(USBHUB_RSTN, 1);
return 0;
}
int board_late_init(void)
{
ulong b_mode = 4;
if (gpio_get_value(TASTER) == 0)
b_mode = 12;
env_set_ulong("b_mode", b_mode);
return 0;
}
int board_init(void)
{
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
if (gpio_request(BKLT_EN, "BKLT_EN"))
printf("Warning: BKLT_EN setup failed\n");
gpio_direction_output(BKLT_EN, 0);
if (gpio_request(USBHUB_RSTN, "USBHUB_nRST"))
printf("Warning: USBHUB_nRST setup failed\n");
gpio_direction_output(USBHUB_RSTN, 0);
if (gpio_request(TASTER, "TASTER"))
printf("Warning: TASTER setup failed\n");
gpio_direction_input(TASTER);
return 0;
}
int board_early_init_f(void)
{
struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
SETUP_IOMUX_PADS(board_pads);
SETUP_IOMUX_PADS(eth_pads);
/* set GPIO_16 as ENET_REF_CLK_OUT running at 25 MHz */
setbits_le32(&iomux->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
enable_fec_anatop_clock(0, ENET_25MHZ);
enable_enet_clk(1);
return 0;
}
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
#else
/* configure MX6SOLO/DUALLITE mmdc DDR io registers */
static struct mx6sdl_iomux_ddr_regs ddr_iomux_s = {
/* SDCLK[0:1], CAS, RAS, Reset: Differential input, 40ohm */
.dram_sdclk_0 = 0x00020030,
.dram_sdclk_1 = 0x00020030,
.dram_cas = 0x00020030,
.dram_ras = 0x00020030,
.dram_reset = 0x00020030,
/* SDCKE[0:1]: 100k pull-up */
.dram_sdcke0 = 0x00003000,
.dram_sdcke1 = 0x00003000,
/* SDBA2: pull-up disabled */
.dram_sdba2 = 0x00000000,
/* SDODT[0:1]: 100k pull-up, 40 ohm */
.dram_sdodt0 = 0x00003030,
.dram_sdodt1 = 0x00003030,
/* SDQS[0:7]: Differential input, 40 ohm */
.dram_sdqs0 = 0x00000030,
.dram_sdqs1 = 0x00000030,
.dram_sdqs2 = 0x00000030,
.dram_sdqs3 = 0x00000030,
.dram_sdqs4 = 0x00000030,
.dram_sdqs5 = 0x00000030,
.dram_sdqs6 = 0x00000030,
.dram_sdqs7 = 0x00000030,
/* DQM[0:7]: Differential input, 40 ohm */
.dram_dqm0 = 0x00020030,
.dram_dqm1 = 0x00020030,
.dram_dqm2 = 0x00020030,
.dram_dqm3 = 0x00020030,
.dram_dqm4 = 0x00020030,
.dram_dqm5 = 0x00020030,
.dram_dqm6 = 0x00020030,
.dram_dqm7 = 0x00020030,
};
/* configure MX6SOLO/DUALLITE mmdc GRP io registers */
static struct mx6sdl_iomux_grp_regs grp_iomux_s = {
/* DDR3 */
.grp_ddr_type = 0x000c0000,
.grp_ddrmode_ctl = 0x00020000,
/* disable DDR pullups */
.grp_ddrpke = 0x00000000,
/* ADDR[00:16], SDBA[0:1]: 40 ohm */
.grp_addds = 0x00000030,
/* CS0/CS1/SDBA2/CKE0/CKE1/SDWE: 40 ohm */
.grp_ctlds = 0x00000030,
/* DATA[00:63]: Differential input, 40 ohm */
.grp_ddrmode = 0x00020000,
.grp_b0ds = 0x00000030,
.grp_b1ds = 0x00000030,
.grp_b2ds = 0x00000030,
.grp_b3ds = 0x00000030,
.grp_b4ds = 0x00000030,
.grp_b5ds = 0x00000030,
.grp_b6ds = 0x00000030,
.grp_b7ds = 0x00000030,
};
/*
* DDR3 desriptions - these are the memory chips we support
*/
/* NT5CC128M16FP-DII */
static struct mx6_ddr3_cfg cfg_nt5cc128m16fp_dii = {
.mem_speed = 1600,
.density = 2,
.width = 16,
.banks = 8,
.rowaddr = 14,
.coladdr = 10,
.pagesz = 2,
.trcd = 1375,
.trcmin = 4875,
.trasmin = 3500,
};
/* measured on board TSERIES_ARM/1 V_LVDS_DL64 */
static struct mx6_mmdc_calibration cal_nt5cc128m16fp_dii_128x64_s = {
/* write leveling calibration determine, MR1-value = 0x0002 */
.p0_mpwldectrl0 = 0x003F003E,
.p0_mpwldectrl1 = 0x003A003A,
.p1_mpwldectrl0 = 0x001B001C,
.p1_mpwldectrl1 = 0x00190031,
/* Read DQS Gating calibration */
.p0_mpdgctrl0 = 0x02640264,
.p0_mpdgctrl1 = 0x02440250,
.p1_mpdgctrl0 = 0x02400250,
.p1_mpdgctrl1 = 0x0238023C,
/* Read Calibration: DQS delay relative to DQ read access */
.p0_mprddlctl = 0x40464644,
.p1_mprddlctl = 0x464A4842,
/* Write Calibration: DQ/DM delay relative to DQS write access */
.p0_mpwrdlctl = 0x38343034,
.p1_mpwrdlctl = 0x36323830,
};
/* measured on board TSERIES_ARM/1 V_LVDS_S32 */
static struct mx6_mmdc_calibration cal_nt5cc128m16fp_dii_128x32_s = {
/* write leveling calibration determine, MR1-value = 0x0002 */
.p0_mpwldectrl0 = 0x00410043,
.p0_mpwldectrl1 = 0x003A003C,
/* Read DQS Gating calibration */
.p0_mpdgctrl0 = 0x023C0244,
.p0_mpdgctrl1 = 0x02240230,
/* Read Calibration: DQS delay relative to DQ read access */
.p0_mprddlctl = 0x484C4A48,
/* Write Calibration: DQ/DM delay relative to DQS write access */
.p0_mpwrdlctl = 0x3C363434,
};
static void spl_dram_init(void)
{
struct gpio_regs *gpio = (struct gpio_regs *)GPIO2_BASE_ADDR;
u32 val, dram_strap = 0;
struct mx6_ddr3_cfg *mem = NULL;
struct mx6_mmdc_calibration *calib = NULL;
struct mx6_ddr_sysinfo sysinfo = {
/* width of data bus:0=16,1=32,2=64 */
.dsize = -1, /* CPU type specific (overwritten) */
/* config for full 4GB range so that get_mem_size() works */
.cs_density = 32, /* 32Gb per CS */
.ncs = 1, /* single chip select */
.cs1_mirror = 0,
.rtt_wr = 1, /* DDR3_RTT_60_OHM, RTT_Wr = RZQ/4 */
.rtt_nom = 1, /* DDR3_RTT_60_OHM, RTT_Nom = RZQ/4 */
.walat = 1, /* Write additional latency */
.ralat = 5, /* Read additional latency */
.mif3_mode = 3, /* Command prediction working mode */
.bi_on = 1, /* Bank interleaving enabled */
.sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
.rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
.ddr_type = 0, /* DDR3 */
};
/*
* MMDC Calibration requires the following data:
* mx6_mmdc_calibration - board-specific calibration (routing delays)
* these calibration values depend on board routing, SoC, and DDR
* mx6_ddr_sysinfo - board-specific memory architecture (width/cs/etc)
* mx6_ddr_cfg - chip specific timing/layout details
*/
/* setup HWID3-2 to input */
val = readl(&gpio->gpio_dir);
val &= ~(0x1 << 0 | 0x1 << 1);
writel(val, &gpio->gpio_dir);
/* read DRAM strapping from HWID3/2 (bit 1 and bit 0) */
dram_strap = readl(&gpio->gpio_psr) & 0x3;
switch (dram_strap) {
/* 1 GiB, 64 bit, 4 NT5CC128M16FP chips */
case 0:
puts("DRAM strap 00\n");
mem = &cfg_nt5cc128m16fp_dii;
sysinfo.dsize = 2;
calib = &cal_nt5cc128m16fp_dii_128x64_s;
break;
/* 512 MiB, 32 bit, 2 NT5CC128M16FP chips */
case 1:
puts("DRAM strap 01\n");
mem = &cfg_nt5cc128m16fp_dii;
sysinfo.dsize = 1;
calib = &cal_nt5cc128m16fp_dii_128x32_s;
break;
default:
printf("DRAM strap 0x%x (invalid)\n", dram_strap);
break;
}
if (!mem) {
puts("Error: Invalid Memory Configuration\n");
hang();
}
if (!calib) {
puts("Error: Invalid Board Calibration Configuration\n");
hang();
}
mx6sdl_dram_iocfg(16 << sysinfo.dsize,
&ddr_iomux_s,
&grp_iomux_s);
mx6_dram_cfg(&sysinfo, calib, mem);
}
static iomux_v3_cfg_t const board_pads_spl[] = {
/* UART#1 PADS */
MUXDESC(PAD_CSI0_DAT10__UART1_TX_DATA, UART_PAD_CTRL),
MUXDESC(PAD_CSI0_DAT11__UART1_RX_DATA, UART_PAD_CTRL),
/* ESCPI#1 PADS */
MUXDESC(PAD_EIM_D16__ECSPI1_SCLK, ECSPI_PAD_CTRL),
MUXDESC(PAD_EIM_D17__ECSPI1_MISO, ECSPI_PAD_CTRL),
MUXDESC(PAD_EIM_D18__ECSPI1_MOSI, ECSPI_PAD_CTRL),
MUXDESC(PAD_EIM_D19__GPIO3_IO19, ECSPI_PAD_CTRL),
/* USDHC#4 PADS */
MUXDESC(PAD_SD4_CLK__SD4_CLK, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_CMD__SD4_CMD, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT0__SD4_DATA0, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT1__SD4_DATA1, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT2__SD4_DATA2, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT3__SD4_DATA3, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT4__SD4_DATA4, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT5__SD4_DATA5, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT6__SD4_DATA6, USDHC_PAD_CTRL),
MUXDESC(PAD_SD4_DAT7__SD4_DATA7, USDHC_PAD_CTRL),
/* HWID*/
MUXDESC(PAD_NANDF_D0__GPIO2_IO00, GPIO_PAD_CTRL_PU),
MUXDESC(PAD_NANDF_D1__GPIO2_IO01, GPIO_PAD_CTRL_PU),
MUXDESC(PAD_NANDF_D2__GPIO2_IO02, GPIO_PAD_CTRL_PU),
MUXDESC(PAD_NANDF_D3__GPIO2_IO03, GPIO_PAD_CTRL_PU),
};
void spl_board_init(void)
{
preloader_console_init();
}
static void ccgr_init(void)
{
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
/*
* We don't use DMA in SPL, but we do need it in U-Boot. U-Boot
* initializes DMA very early (before all board code), so the only
* opportunity we have to initialize APBHDMA clocks is in SPL.
* setbits_le32(&ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
*/
writel(0x00C03F3F, &ccm->CCGR0);
writel(0x00F0FC03, &ccm->CCGR1);
writel(0x0FFFF000, &ccm->CCGR2);
writel(0x3FF00000, &ccm->CCGR3);
writel(0x00FFF300, &ccm->CCGR4);
writel(0x0F0030C3, &ccm->CCGR5);
writel(0x000003F0, &ccm->CCGR6);
}
void board_init_f(ulong dummy)
{
ccgr_init();
arch_cpu_init();
timer_init();
gpr_init();
SETUP_IOMUX_PADS(board_pads_spl);
spl_dram_init();
}
void reset_cpu(void)
{
}
#endif /* CONFIG_SPL_BUILD */
Reference in a new issue View git blame Copy permalink